12. a technician reads and records the air pressure from several pressure gauges. the table shows each air…

12. a technician reads and records the air pressure from several pressure gauges. the table shows each air - pressure reading in pascals (pa). a pascal is a unit used to measure the amount of force applied on a given area by air or other gases.\n\n| | a | b | c |\n|--|--|--|--|\n| pressure gauge | 210000 | 3.2×10^5 | 170000 |\n| air pressure (pa) | | | |\n\na. which pressure gauge has the greatest reading?\nb. which pressure gauge has the lowest reading?\nc. the atmospheric pressure when these readings were made was 1.1×10^5 pascals. which gauge(s) showed a reading greater than the atmospheric pressure?\n\n13. identify the lesser number, and justify your reasoning.\n8.7×10^7 or 5.9×10^7\n\n14. 4.8×10^7 or 9.6×10^7\n\n15. 3.1×10^(-5) or 7.5×10^(-5)\n\n16. 6.9×10^(-3) or 4.3×10^(-3)\n\n17. solve. show your work.\nthe table shows population data for four countries.\n\n| country | brazil | singapore | monaco | fiji |\n|--|--|--|--|--|\n| population | 210000000 | 5640000 | 38700 | 883000 |\n\nwrite each population in scientific notation.

12. a technician reads and records the air pressure from several pressure gauges. the table shows each air - pressure reading in pascals (pa). a pascal is a unit used to measure the amount of force applied on a given area by air or other gases.\n\n| | a | b | c |\n|--|--|--|--|\n| pressure gauge | 210000 | 3.2×10^5 | 170000 |\n| air pressure (pa) | | | |\n\na. which pressure gauge has the greatest reading?\nb. which pressure gauge has the lowest reading?\nc. the atmospheric pressure when these readings were made was 1.1×10^5 pascals. which gauge(s) showed a reading greater than the atmospheric pressure?\n\n13. identify the lesser number, and justify your reasoning.\n8.7×10^7 or 5.9×10^7\n\n14. 4.8×10^7 or 9.6×10^7\n\n15. 3.1×10^(-5) or 7.5×10^(-5)\n\n16. 6.9×10^(-3) or 4.3×10^(-3)\n\n17. solve. show your work.\nthe table shows population data for four countries.\n\n| country | brazil | singapore | monaco | fiji |\n|--|--|--|--|--|\n| population | 210000000 | 5640000 | 38700 | 883000 |\n\nwrite each population in scientific notation.

Answer

Explanation:

Step1: Compare pressure values

We have pressure values: A = 210000 Pa, B = 3.2×10⁵ Pa = 320000 Pa, C = 170000 Pa.

Step2: Find the greatest value

Comparing 210000, 320000 and 170000, we see 320000 is the largest. So gauge B has the greatest reading.

Step3: Find the lowest value

Among 210000, 320000 and 170000, 170000 is the smallest. So gauge C has the lowest reading.

Step4: Compare with atmospheric pressure

Atmospheric pressure is 1.1×10⁵ Pa = 110000 Pa. Gauge A (210000 Pa), gauge B (320000 Pa) both have readings greater than 1.1×10⁵ Pa.

Answer:

a. Gauge B has the greatest reading. b. Gauge C has the lowest reading. c. Gauges A and B showed a reading greater than the atmospheric pressure.